Example of an Odoo Template XML rewrite using rare and non-documented inheritance extension

template-rare-inheritance.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    
    <template id="recommended_products_ext" inherit_id="website_sale.recommended_products">
        <xpath expr="." position="replace">
            <t name="Product" t-name="website_sale.recommended_products">
                <xpath expr="//div[@id='product_small_description']" position="before">
                    <div class="container mt32" t-if="product.alternative_product_ids">
                        <h3>Alternative Products:</h3>
                        <div class="row mt16" style="">
                            <t t-foreach="product.alternative_product_ids" t-as="alt_product">
                                <div class="col-md-2 thumbnail" style="width: 170px; height:130px; float:left; display:inline; margin-right: 10px; overflow:hidden;">
                                    <div class="mt16 text-center" style="height: 100%;">
                                        <div t-field="alt_product.image_small" t-options="{'widget': 'image', 'class': 'img-rounded shadow o_alternative_product' }" />
                                        <h5>
                                            <a t-attf-href="/shop/product/#{ slug(alt_product) }" style="display: block">
                                                <span t-att-title="alt_product.name" t-field="alt_product.name" class="o_text_overflow" style="display: block;" />
                                            </a>
                                        </h5>
                                    </div>
                                </div>
                            </t>
                        </div>
                    </div>
                </xpath>
            </t>
        </xpath>
    </template>
    
</odoo>